Talking about the Principle of Using CNC Machining Feed Rate

In CNC machining, the CNC control system accesses the feedrate word through the F address. The number after the F address determines the feedrate, but the number depends on the feedrate mode and machine tool application. Feedrate is the programming factor most closely related to the spindle function. Usually, when removing excess material (blank), the spindle function controls the spindle speed and direction of rotation, while the feedrate controls the feed speed of the tool. According to this feature, in CNC machining, the feed rate can be divided into two types: feed rate per minute (mm/min or in/min) and feed rate per revolution (mmr or inr). The most common CNC machines, namely machining centers and lathes, can be edited in any feed mode. However, in practical applications, machining centers often use feed rates per minute, while CNC lathes often use feed rates per revolution. To choose the most suitable feedrate, you must be familiar with the main factors that affect the feedrate setting of CNC machining, which is also an important part of programming. The choice of feed rate usually mainly depends on the spindle speed (rmin), tool diameter

(M) or tool tip arc radius (T), workpiece surface requirements, cutting tool geometry, cutting force, workpiece installation method, tool cantilever amount, cutting motion length, material removal

(Cutting depth or width), milling method (climb milling or up milling)

The number of grooves on the material (only for milling cutters), safety factors.